Katerina Siapanta
type: MusicGroup
genre: entehno
genre: laïko
popularity: 5
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b22214a89f1a4ca7431698b93f91fdb8c97b64b7692a7233ba108da3f159d80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/287fc08f-de3b-4069-8cef-9b99f79c3bbf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/287fc08f-de3b-4069-8cef-9b99f79c3bbf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/287fc08f-de3b-4069-8cef-9b99f79c3bbf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3b22214a89f1a4ca7431698b93f91fdb8c97b64b7692a7233ba108da3f159d80","name":"Katerina Siapanta","registered_at":"2026-06-16T03:38:34Z","symbol":"NIM0925566","token_address":"0x4f8892edb3731f18511068abe62fb82bdcf4c644","type":"artist","uuid":"287fc08f-de3b-4069-8cef-9b99f79c3bbf"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b22214a89f1a4ca7431698b93f91fdb8c97b64b7692a7233ba108da3f159d80. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/287fc08f-de3b-4069-8cef-9b99f79c3bbf.json and https://artists.proofprofile.net/proofs/artist/287fc08f-de3b-4069-8cef-9b99f79c3bbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x3b22214a89f1a4ca7431698b93f91fdb8c97b64b7692a7233ba108da3f159d80","name":"Katerina Siapanta","registered_at":"2026-06-16T03:38:34Z","symbol":"NIM0925566","token_address":"0x4f8892edb3731f18511068abe62fb82bdcf4c644","type":"artist","uuid":"287fc08f-de3b-4069-8cef-9b99f79c3bbf"}
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  type: MusicAlbum
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